Philanthropy 451 by Saving Giving

Investor Due Diligence Report

substackBusiness

Welcome to Philanthropy 451, a weekly newsletter with my thoughts on the state of the nonprofit industry, including anecdotes, statistics, and helpful recommendations. I'm Lisa Greer and I'm obsessed with Saving Giving.

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Key Metrics

Subscribers

490 paid

Verified

Weekly Growth

Paid Sub Retention (30d)

Insufficient data

12 of 30 days needed

Revenue Analysis

Pricing

$8/mo

$80/yr annual option

Est. Monthly Revenue

$3K

490 paid subs

$3K/mo – $3K/mo(±0%)

Engagement

Avg Comments/Post

0.5

Avg Likes/Post

39.5

Engagement Rate

0.57%

(comments + likes) / subscribers

Quality & Publishing

Audience Quality Score

61Fair

0100

Publishing Pace

Bi-weekly

0.8 posts/week

Score based on available components only.

Component	Score	Weight

Competitive Landscape (Business)

Newsletter	Subscribers	Weekly Growth	Price	Platform
a16z speedrun	168K	+1.2%	Free	substack
The Business Engineer	90K	N/A	$99/mo	substack
Better You	76K	+2.8%	Free	substack
Scarlet Ink	73K	N/A	$12/mo	substack

Revenue Trajectory

Estimated monthly revenue over time

Month	Subscribers	Est. Revenue	Change
Feb 2026	7K	$3,116.4	—
Mar 2026	7K	$3,116.4	~0%

Risk Assessment

Key risk factors for due diligence

High

Platform Dependency

Hosted on substack subdomain

Medium

Key Person

Single-author publication — key-person dependency

Low

Audience Concentration

Consistent engagement across posts

Low

Revenue Model

Active paid subscription tier

Monetization Readiness

Monetization status

Subscriber threshold

7K subscribers — above the 2K category median for first paid tier

Has paid tier

Active paid subscription offering

Peer monetization

100% of 213 similar-size peers in Business have paid tiers

Pricing position

$8/mo vs $145.16/mo category average (1511 newsletters)

Pricing History

Date	Monthly	Annual
Mar 2026	$8	$80

Data Quality

Report Data QualityFull - All metrics available

Subscriber Confidenceverified

Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.